Show:
Solving Inequalities Part 1
Solving Inequalities Part 2
Writing Inequalities Part 1
Writing Inequalities Part2
Graph Inequalities
100

Solve

x+3>9

x>6

100

Solve:

4r+8<12r

r>1

100

Write a linear inequality:

A number decreased by 7 is at most 13.

x-7≤13

100

Write a linear inequality and solve it:

Jesse wants to buy more glass ducks. Each glass duck costs 12.50 but Jesse only has $150 total. 

12.50x≤150

100

What does this symbol called, ">" ?

greater than

or more than

200

Solve 

(x/5)– 11 ≥ -14

x≥-15

200

Solve:

3x+7>3x

No solution

200

Write a linear inequality:

A number plus 6 is greater than 1.

x+6>1

200

Write a linear inequality and solve it:

Pet Supplies makes a profit of $5.50 per bag on its line of natural dog food. If the store wants to make a profit of no less than $5225, how many bags of dog food does it need to sell?

5.50x≥5225

200

Graph the Inequality

8d < 24

d<3

Open circle at 3 and arrow going to the left. 

300

Solve

7 < 4q - 9

q>4

300

Solve: 

4x-5>24x+5

x<-1/2

300

Write a linear inequality:

A sum of a number and 14 is at least 28

x+14≥28

300

Write a linear inequality and solve it:

Adrian works in New York City and makes $42 per hour. She works in an office and must get her suit dry cleaned everyday for $75. She wants to make at least $260 a day.  


42x-75≥260

300

Graph the Inequality

-15 ≥ -3x -45

-10≤x

Dot at -10 and the arrow is going to the right

400

Solve

21 ≤ 3 + 9x

x≥2

400

Solve:

-3x+6<18-x

x>-6

400

Write a linear inequality:

the product of a number and 4 is decreased by 5 is less than 32

4x-5<32

400

Write a linear inequality:

Pedro is ordering a flower arrangement with roses and carnations. He doesn't want to spend more than $46 on the arrangement. Roses cost $5 each and carnations cost $1 each.

x= the number of roses

y= the number of carnations

5x+y≤46

400

What does "inverse operation" mean?

eg. what is the inverse operation of 3x/4?

x divided by 3/4

or times 4/3

500

Solve 

(2x-3)/-5<3

x>-6

500

Solve:

2x+6x+16<12x-8


x>6

500

Write a linear inequality:

Twice a number is more than the sum of that number and 8.

2x>x+8

500

Write a linear inequality:

The manager of an electronics store projects that the store should achieve more than $11,000 in revenue from TVs and DVD players every day in order to remain profitable. Its DVD players sell for $63, and TVs sell for $690.

x= the number of DVD players sold

y= the number of TVs sold

11,000<63x+690y

500

Graph the Inequality

(x/3)+2≥9

x≥21

Dot at 21 and arrow going to the right.